// Copyright 2021-present StarRocks, Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.starrocks.sql.optimizer.operator;

import com.starrocks.thrift.TTopNType;

public enum TopNType {
    ROW_NUMBER,
    RANK,
    DENSE_RANK;

    public TTopNType toThrift() {
        if (ROW_NUMBER.equals(this)) {
            return TTopNType.ROW_NUMBER;
        } else if (RANK.equals(this)) {
            return TTopNType.RANK;
        } else {
            return TTopNType.DENSE_RANK;
        }
    }

    public static TopNType parse(String name) {
        for (TopNType value : values()) {
            if (value.name().equalsIgnoreCase(name)) {
                return value;
            }
        }
        return null;
    }
}
